/*
 * Copyright (C) 2010-2011 sunjumper@163.com
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *  http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */
package mf.mfrpc.serialize;

import java.io.Serializable;

/**
 * 流数据迭代器。
 */
public interface DataSourceIterator extends Serializable {

    /**
     * 如果仍有流数据可以迭代，则返回 true。
     *
     * @return 如果迭代器具有多个流数据，则返回 true。
     */
    boolean hasNext();

    /**
     * 返回迭代的下一个流数据。
     * 
     * @return 迭代的下一个流数据。
     */
    DataSource next();
}
